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Finding the Fourth Proportional to 2,673.90, 3,690.90 and 1,612.26

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Solution

The fourth proportional to 2,673.90, 3,690.90 and 1,612.26 is: 2,225.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,673.90 : 3,690.90 = 1,612.26 : x
  2. Step 2: Convert to fraction form
    2,673.90/3,690.90 = 1,612.26/x
  3. Step 3: Cross multiply
    2,673.90x = 3,690.90 × 1,612.26
  4. Step 4: Simplify right side
    2,673.90x = 5,950,690.43
  5. Step 5: Solve for x
    x = 5,950,690.43/2,673.90
  6. Step 6: Final answer
    x = 2,225.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.